Means for protecting the contents of receptacles.



L. J. TINT. v MEANS FOR PROTECTING THE CONTENTS OF REGEPTACLES. AYPLIGATION FILED JUNE 3, 1912.

1,072,674, Patented Sept. 9, 1913.

; LOUIS J. rmr, or cnxcaso, ILLrnors.

MEANS FOR EB OTECTIHG Specification of Letters Eatent.

CQN'IENTS OF RECEPTACLES.

Application filed June a, 1912.- Serial No. 701.80g.

To all whom it may concern: Be it known that I, LOUIS J. TINT, a citizen of the United States, residing at Chieago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Means for Protecting the Contents of Receptacles, of which the following is a specification.

My invention relates in general to receptacles, and more particularly to means for protecting the contents of receptacles from contamination through the ingress of impure or infected air.

When a portion of the contents of a re ceptacle is discharged, the remaining portion is exposed to infection from the impurities in the air which replaces the discharged portion of the contents. For this reason it is unsafe to use medicinal fluids, such as an-titoxin, for instance, after they have been exposed to air, and hence any portion of the contents remaining after the receptacle is first opened is wasted. Various other fluids, such, for instance, as wines, must be entirely used when the receptacles containing them are opened, as any portions remainin in the receptacles soon become infected by he im purities in the air which replaces the discharged portions of the fluids.

The primary object of my invention is to provide means'for preventing the air which replaces discharged portions of the contents of receptacles from infecting the contents re maining in the receptacles. v

A further object of my invention to provide means for automatically purifying the air which passes into receptacles to replace discharged portions of the contents of the receptacles.

A still further object of my invention is to provide an air inlet conduit for receptacles for purifying the air which passes into them, and which will be simple in construction, convenient in use, and eflicient in operation.

-My invention will be more fully disclosed hereinafter with reference to the accompanyingdrawing, in which an embodiment of my invention is illustrated in avperspective View.

Reference letter A indicates a receptacle for liquids, such for instance as a bottle.

tends through the stopper B into the intenor of the receptacle A.

D indicates a chamber formingpart of the conduit 0 and in which 'is vplaced suitable Patented Sept. 9, 191a filtering or purifying material such, for. in

stance, as sterilized cotton. 'The outer end of the conduit through which the liquid contents of the receptacle are discharged is preferably curved downwardly, as shown at (i; The lower end of the conduit is preferably closed, and an opening 0 is provided through one wall thereof at a point within the receptacle below the stopper so that when the conduit is drawn outwardly through the stopper the opening c will be Y closed and the outlet sealed.

E designates an outlet conduit which extends upwardly within an opening extending partway through the stopper B.

F designates a syringe having a needle point f adapted to be forced through the portion of the stopper above the upper end of the outlet conduit E so that the contents ofthe receptacle may be drawn upwardly into the syringe. When the syringe is removed from the stopper the rubber of which cap or plug to close the opening in thestopper through which the outlet conduit extends. In the operation of this embodiment of my invention, the air inlet conduit is forced downwardly within the stopper until the opening 0 is exposedv below the stopper. The needle inlet fof the syringe is then forced through the stopper B until its point lies within the upper end of the outlet conduit E. When the plunger of the syringe is drawn upwardly, liquid contents are drawn thereinto from the receptacle while air passes through the sterilized cotton in the chamber D into the receptacle to replace the withdrawn portion of its con-' tents. The contents of the receptacle are consequently protected from infectlon by the impurities in the air, the air having been purified before passing into the receptacle.

From the foregoing descriptio'n it'will be observed that by'means of my invention the contents of receptacles may be protected from contamination from impurities in the air which enters into the receptacles to replace the contents discharged therefrom, thereby rendering it possible to withdraw portions of the contents of the receptacles while the-remaining portions of the contents are preserved against infection or deterioration. It will be 'furtherjob'served that my invention maybe applied to re-" ceptacles of ordinaryor usual form in commen-use.

I claim: v g Y 1 The combination with a receptacle having 'a discharge opening, of a removable stopper closing said opening, an air inlet .conduit extending through said stopper through which air passes into the receptacle to replace discharged portions of the liquid contents thereof, a chamber communicating with said conduit containing sterilizing material'through which the air passes to. the interior of the receptacle, and a liquid discharge conduit supported at its upper end within a recess in the inner surface of said stopper, the portion of. the stopper above said recess serving to normally close said outlet against ingress of air and adapted "to be pierced by the needle point of a syringe for withdrawing a portion of the liquid contents of the receptacle.

containing sterilizin' removable upwardly through said stopper to close said hole and seal the receptacle when'no contents are to be withdrawn therefrom, a chamber formed in said conduit material, through which air passes to t e interior of the receptacle, a liquid discharge conduit supported at its upper end within a recess within the lower surface of said stopper, the portion of the-stopper-above said recess serving to normally. close said outlet against the ingress of air 'andadapted to be pierced by the needle point of a syringe for withdrawing a portion of. the llquid contents of the receptacle.

3. The combination with a receptacle having a discharge opening, of a removable stopper. closing said opening, an .air inlet conduit extending through said stopper throughwhich air passes into the rece tacle "to replace discharged portions of the iquid contents thereof, a chamber communicating with said conduit containing sterilizing material through which air passes to the interior of the receptacle, a liquid discharge conduit supported ,at its upper end within a recess in the inner surface of said'stopper, the ortion'of the stopper above said recess serving to normally close said outletagainst ingress of air and adapted to be pierced by the needle point of an outlet conduit, and means for creatin a difference in pressure between the interlor of the receptacle and said outlet conduit for forcing the liquid contents out of the receptacle. and simultaneously replacing the discharged contents with sterilized air.

In testimony whereof, I have subscribed my name.

. LOUIS J. TINT. Witnesses:

GEO. L. WILKINSON, HENRY A. PARKS. 

